One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,7)(9,10,13,15)(11,12,16,14)(17,18)(19,24)(20,22)(21,23)(27,29)(28,31)(1,2)(3,7)(4,5)(6,8)(9,11,13,16)(10,14,15,12)(17,19)(18,20)(21,22)(23,24)(25,26,30,32)(27,31,29,28)(9,10)(11,12)(13,15)(14,16)(17,20)(18,22)(19,23)(21,24)(25,27,30,29)(26,31,32,28)(1,2)(3,7)(4,5)(6,8)(9,10)(11,14)(12,16)(13,15)(17,20)(18,19)(21,24)(22,23)(25,28)(26,27)(29,32)(30,31) involution — undirected(1,3,4,8)(2,6,5,7)(9,12,13,14)(10,11,15,16)(17,18)(19,24)(20,22)(21,23)(25,29,30,27)(26,28,32,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.